The Yijing (Book of Changes) is an ancient Chinese divination text and a cornerstone of East Asian philosophy. Originally a bronze-age manual for oracles, it evolved into a profound cosmological system. It is built upon 64 hexagrams—sets of six stacked lines that are either solid (Yang) or broken (Yin). These symbols represent the dynamic balance of opposites and the inevitability of change. By consulting the Yijing, users seek alignment with the Dao (the Way), gaining insight into the present and guidance for the future. It teaches that the universe is in constant flux, emphasizing that wisdom lies in adapting to these eternal cycles.